149992986 has 64 divisors (see below), whose sum is σ = 358525440. Its totient is φ = 41231040.

The previous prime is 149992963. The next prime is 149992991. The reversal of 149992986 is 689299941.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49141 + ... + 52103.

It is an arithmetic number, because the mean of its divisors is an integer number (5601960).

Almost surely, 2^149992986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149992986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179262720).

149992986 is an abundant number, since it is smaller than the sum of its proper divisors (208532454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149992986 is a wasteful number, since it uses less digits than its factorization.

149992986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051.

The product of its digits is 2519424, while the sum is 57.

The square root of 149992986 is about 12247.1623652175. The cubic root of 149992986 is about 531.3210028098.

The spelling of 149992986 in words is "one hundred forty-nine million, nine hundred ninety-two thousand, nine hundred eighty-six".